https://www.khanacademy.org/computer-programming/car-physics-thingy/5378059343 I am working on creating a game that is a 2d side scrolling car gameI am working on creating a 2D side-scrolling car game. My problem is generating the terrain. When creating the terrain, I need to have it random and recorded, so I can create collisions at a later point. II can't use any externals or anything so yeahexternal assets.
/**
@TODO:
Work on collisions with curves and stuff
Create the physics for driving/hills and stuff
*/
var keys = [];
var keyPressed = function() {
keys[keyCode] = true;
};
var keyReleased = function() {
keys[keyCode] = false;
};
var car = function(locatio, accel, image, dragcoof) {
this.loc = locatio;
this.accel = accel;
//this.power = power;
this.image = image;
this.volocity = new PVector(0, 0);
this.acceleration = new PVector(0, 0);
this.drag = new PVector(0, 0);
this.dragcoof = new PVector(dragcoof.x, dragcoof.y);
};
car.prototype.draw = function() {
if (this.image === null) {
//println("please put a nice image but I will supply a simple box for testing");
//pushMatrix();
fill(255, 0, 0);
rect(this.loc.x, this.loc.y, 50, 10);
} //popMatrix();
} else {
this.image(this.loc.x, this.loc.y);
}
};
car.prototype.update = function() {
//this.momentum = this.volocity.mult(this.mass);
if (this.volocity.x >= 10) {
this.volocity.x = 9.99;
}
if (this.volocity.x <= 0.1) {
this.volocity.x = 0;
}
this.volocity.add(this.acceleration);
//this.volocity.add(-this.drag);
// this.acceleration.sub(this.drag);
this.loc.add(this.volocity);
// this.drag = this.volocity.mult(this.dragcoof);
this.drag = PVector.mult(this.volocity, this.dragcoof);
this.volocity.sub(this.drag);
if (this.loc.x >= 600) {
this.loc.x = 0;
// println(this.volocity);
}
//this.
};
car.prototype.move = function(keycodeLeft, keycodeRight) {
if (keys[RIGHT] && this.volocity.x < 10) {
this.acceleration.add(this.accel.x,0);
}
if (!keys[RIGHT] && !keys[LEFT]) {
this.acceleration.set(0, 0);
}
if (keys[LEFT] && this.volocity.x >= 0.5) {
this.acceleration.set(-0.1, 0);
}
//if(this.acceleration.x<0){
// this.acceleration.x = 0;
//}
};
var a = new car(new PVector(10, 200), new PVector(0.01,0), null, new PVector(0.022, 0));
var draw = function() {
background(255, 255, 255);
a.draw();
a.update();
a.move();
text(a.acceleration + "\n" + a.volocity+"\n"+a.drag, 25, 25);
};
